CN102770320A - Transmission device for vehicle - Google Patents
Transmission device for vehicle Download PDFInfo
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- CN102770320A CN102770320A CN2011800109954A CN201180010995A CN102770320A CN 102770320 A CN102770320 A CN 102770320A CN 2011800109954 A CN2011800109954 A CN 2011800109954A CN 201180010995 A CN201180010995 A CN 201180010995A CN 102770320 A CN102770320 A CN 102770320A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
- B60W10/115—Stepped gearings with planetary gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/18008—Propelling the vehicle related to particular drive situations
- B60Y2300/18108—Braking
- B60Y2300/18125—Regenerative braking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Transmission Device (AREA)
Abstract
When down-shift is carried out during regenerative torque output, the disclosed device transfers to a wheel side without limiting regenerative torque and whilst inhibiting a drop in the input rotation speed of a transmission mechanism. The disclosed transmission device for a vehicle is provided with: an input member which is drive-connected to an internal combustion engine and a rotating electric machine; an output member which is drive-connected to wheels; a transmission mechanism; and a control device. When the rotating electric machine down-shifts during regenerative torque output, the control device increases the transmission torque capacity of engagement-side elements, which are frictional engagement elements on the engagement side, up to a target increased capacity set according to the regenerative torque, during a torque capacity increase period, and also reduces the transmission torque capacity of release-side elements, which are frictional engagement elements on the release side, during a torque capacity reduction period of which at least part overlaps with the torque capacity increase period.
Description
Technical field
The present invention relates to a kind of vehicle-use transmission device, this vehicle-use transmission device has: input link, and it drives with combustion engine and rotating machine and is connected; Output link, it is connected with wheel drive; Speed-changing mechanism, it has through the joint of controlling a plurality of frictional engagement members and separates a plurality of speed change retainings that form; Control setup, it controls said speed-changing mechanism.
Background technology
As combustion engine and rotating machine are used transmission system as the motor vehicle driven by mixed power of drive force source, for example, known have patent documentation 1 a described device described as follows.In this transmission system; When vehicle slows down, make rotating machine output regenerative torque (regenerative torque), make car retardation come vehicle is braked with desirable negative acceleration; And with recover kinetic energy is electric energy, realizes the reduction of oil consumption thus.
In the technology of patent documentation 1, when in the output regenerative torque, retaining being fallen in the speed change of speed-changing mechanism retaining, separate the moment of torsion that switching can be transmitted by speed-changing mechanism and temporarily descend because of the frictional engagement member is engaged.Therefore; In the technology of patent documentation 1, in response to the decline of this moment of torsion that can transmit, through the regenerative torque that makes rotating machine output is temporarily limited; Prevent the decline of the input speed of speed-changing mechanism, and through input speed is risen shorten to accomplish fall till the retaining during.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2008-94332 communique
Summary of the invention
The problem that invention will solve
But, in like patent documentation 1 described technology, because the regenerative torque of when retaining restriction rotating machine falls in the process of output regenerative torque, thereby exist the regenerative torque that transmits to wheel side to descend and the temporary transient such problem that descends of vehicles whose braking forces.
In addition; In patent documentation 1 described technology; When falling retaining; Separate to switch the moment of torsion that speed-changing mechanism can transmit and descend because of the frictional engagement member is engaged, even thereby do not make rotating machine reduce regenerative torque and export, speed-changing mechanism can not be passed to wheel side with regenerative torque.Therefore, when falling retaining, existence can not be guaranteed the problem of vehicles whose braking forces fully based on regenerative torque.
Therefore, hope to realize following vehicle-use transmission device, that is, when in the output regenerative torque, falling retaining, the input speed that can suppress speed-changing mechanism reduces, and does not limit regenerative torque and regenerative torque is passed to the vehicle-use transmission device of wheel side.
The means that are used to deal with problems
Vehicle-use transmission device of the present invention has: input link; It is connected with combustion engine and rotating machine and is driven; Output link; It is connected with wheel driving said wheel, speed-changing mechanism, and it has a plurality of frictional engagement members; And have a plurality of speed changes retainings that joint and separation through controlling these a plurality of frictional engagement members form; Control setup, it controls said speed-changing mechanism, and the feature structure of this vehicle-use transmission device is; When falling retaining during the joint through controlling said frictional engagement member in the process of said rotating machine output regenerative torque and separating is regenerated; The expected value of transfer torque capacity after increase that said control setup is set the engage side member according to said regenerative torque is that target increases capacity, and makes the transfer torque capacity of said engage side member increase to said target in during the torque capacity of regulation increases to increase capacity, and at least a portion with during the torque capacity of the regulation that repeats during said torque capacity increases reduces in the transfer torque capacity that separates side member is reduced; The frictional engagement member that said engage side member is an engaged side, said separation side member are the frictional engagement members of a separated side.
In addition; In this application; " converter speed ratio " is meant; When speed-changing mechanism has formed each speed change retaining, wait the ratio of the rotative speed of rotative speed that stipulate, input link and output link by the number of teeth that forms each gear that each speed change keeps off, in this application, " converter speed ratio " is the value that the rotative speed with input link draws divided by the rotative speed of output link.
In addition; In this application; " drive and connect " and refer to; Two rotating members connect and state that can transmission of drive force, its notion comprise that these two rotating members connect and state that can the one rotation or these two rotating members can transmission of drive force through one or more transmission component connection state.Such transmission component comprises the various members of rotation perhaps to carry out with speed transmitting after the speed change, for example comprises axle, gear mechanism, frictional engagement member, band, chain etc.
According to above-mentioned feature structure; During the torque capacity that the transfer torque capacity of engage side member is increased increases with at least partly repetition during the torque capacity that the transfer torque capacity that separates side member is reduced reduces; Thereby in regeneration, fall in the retaining process, also can utilize the arbitrary member in engage side member and separation these both sides of side member or these members to come to transmit regenerative torque to wheel side.Thereby, can not produce regenerative torque be not passed to wheel side during.In addition; Expected value after the transfer torque capacity of setting the engage side member according to regenerative torque increases is that target increases capacity; Thereby the frictional engagement member that transmits regenerative torque also can suitably transmit regenerative torque to wheel side after the separation side member is transferred to the engage side member.Therefore, in regenerating, fall when retaining, can prevent because of regenerative torque makes the temporary transient situation about descending of vehicle braked, thus can keep based on regenerative torque to vehicle braked.
In addition; Retaining falls in order to accomplish; Need to increase the rotating speed of input link, but according to this feature structure, when in regenerating, falling retaining; Can guarantee the transmission of the propulsive effort between rotating machine and the wheel, thereby can suppress regenerative torque not to be passed to wheel side and situation that the power that reduces as the rotating speed that makes input link plays a role.Thereby, when retaining falls in regenerating, can suppress the decline of the rotating speed of input link, thereby can shorten to accomplish fall till the retaining during.
In addition, according to this feature structure, on one side the regenerative torque that transmits through the engage side member is increased, Yi Bian overlapping making (overlapping) through separating the regenerative torque minimizing that side member transmits.Thus, the frictional engagement member of the transmission of taking regenerative torque is successfully transferred on the engage side member overlappingly from separating side member.Thereby, can suppress change to the moment of torsion of wheel side transmission.
Here, preferably, the joint of said frictional engagement member and separation are controlled by the oil pressure of the action oil of supplying with to said frictional engagement member, and through controlling the increase and decrease that said oil pressure controls continuously said transfer torque capacity.
According to this structure, the oil pressure through control is supplied with to the frictional engagement member can make the transfer torque capacity change continuously.Thereby, in regeneration, fall in the process of retaining, the regenerative torque that is passed to wheel side is changed continuously, thereby can carry out accurately based on regenerative torque to vehicle braked.
Here; Preferably; Said control setup is set at the said target increase capacity of said engage side member, and said speed-changing mechanism can be passed to whole said regenerative torques the minimal transfer torque capacity of said output link side under the separated situation of said separation side member.
According to this structure, can on one side whole regenerative torques be passed to the output link side through the engage side member, the input and output member of this engage side member between produce speed discrepancy (skid) on one side.Therefore, can suppress to increase the rotating speed generation steep variation that makes input link, thereby can suppress to increase the situation that the moment of torsion change that causes is passed to output link because of the urgency of the transfer torque capacity of engage side member because of the urgency of the transfer torque capacity of engage side member.Therefore, can realize having suppressed in the regeneration smoothly of the change of the moment of torsion of wheel side transmission, falling retaining control.
Here, preferably, said control setup makes the zero hour during the torque capacity increase of the zero hour and said regulation during the torque capacity of said regulation reduces synchronous.
According to this structure, when can begin to increase the regenerative torque that utilizes the transmission of engage side member, begin to reduce to utilize and separate the regenerative torque that side member transmits.Thus, Yi Bian the change of the moment of torsion that can suppress more reliably to transmit to wheel side, Yi Bian begin to be transferred to the engage side member from the separation side member of the frictional engagement member of the transmission of taking on regenerative torque.
In addition, preferably, said control setup makes the finish time during the torque capacity increase of the finish time and said regulation during the torque capacity of said regulation reduces synchronous.
According to this structure, can, the increase that makes the regenerative torque that utilizes the transmission of engage side member make the minimizing end that utilizes the regenerative torque that separates the side member transmission when finishing.Thus, Yi Bian the change of the moment of torsion that can suppress more reliably to transmit to wheel side, completion on one side is transferred to the engage side member from the separation side member of the frictional engagement member of the transmission of taking on regenerative torque.
In addition; Preferably; Said control setup before the beginning, makes the transfer torque capacity of said separation side member be reduced to the transfer torque capacity that can whole said regenerative torques be passed to the big specified value of minimal transfer torque capacity of said output link side than said speed-changing mechanism during the torque capacity of said regulation reduces.
According to this structure; The transfer torque capacity that separates side member is reduced near the minimal transfer torque capacity in advance; Thereby can during torque capacity reduces, promptly make the transfer torque capacity that separates side member after the beginning, thereby can be accurately the transmission of regenerative torque be transferred to the engage side member from the minimizing of minimal transfer torque capacity.Therefore, can realize having suppressed in the regeneration smoothly of the change of the moment of torsion of wheel side transmission, falling retaining control.
In addition; Preferably; After said control setup finishes during the torque capacity of said regulation increases; The milder degree of dip of degree of dip during the transfer torque capacity that makes said engage side member increases with the torque capacity than said regulation is from the increase of said target increase capacity, so that the speed discrepancy between the input and output member of said engage side member reduces, and; After the said speed discrepancy of said engage side member becomes below the specified value; The transfer torque capacity of said engage side member is changed, Yi Bian so that the minimizing speed of the said speed discrepancy of said engage side member is reduced, Yi Bian make rotating speed and the synchronization of output link of the input link of said engage side member.
According to this structure, through engage side member whole regenerative torques be passed to output link side on one side, little by little reduce the speed discrepancy (skidding) between the input and output member of this engage side member on one side, the engage side member is transferred to the full engagement state.Thereby, can suppress urgency because of the transfer torque capacity of engage side member and increase the moment of torsion change that causes and be passed to the situation of output link, and can realize having suppressed in the regeneration smoothly of the change of the moment of torsion of wheel side transmission, falling retaining control.
In addition, according to this structure, before the engage side member was synchronous, the transfer torque capacity of engage side member was reduced, thereby can reduce the moment of torsion change of synchronous front and back.
In addition, preferably, said control setup changes the transfer torque capacity of said engage side member according to the variation of said regenerative torque.
According to this structure, regenerative torque changes in the process of retaining even in carrying out regeneration, fall, and the transfer torque capacity of engage side member is changed.Therefore, regenerative torque changes in the process of retaining even in carrying out regeneration, fall, and also can keep can this regenerative torque being passed to the state of output link side.
In addition, vehicle-use transmission device of the present invention has: input link, and it is connected with combustion engine and rotating machine and is driven; Output link, it is connected with wheel to drive said wheel, speed-changing mechanism; It has a plurality of frictional engagement members of controlling through the oil pressure of the action oil that is supplied to; And have a plurality of speed changes retainings that joint and separation through controlling these a plurality of frictional engagement members form, control setup, it controls said speed-changing mechanism; The feature structure of this vehicle-use transmission device is; When falling retaining during the joint through controlling said frictional engagement member in the process of said rotating machine output regenerative torque and separating is regenerated; The expected value of oil pressure after increase that said control setup is set the engage side member according to said regenerative torque is that target increases oil pressure; And the oil pressure that makes said engage side member in during the oil pressure of regulation increases increases to said target increase oil pressure; And at least a portion with during the oil pressure of the regulation that repeats during said oil pressure increases reduces in the oil pressure that separates side member is reduced; Said engage side member is a frictional engagement member of wanting an engaged side, and said separation side member is the frictional engagement member of a side that will be separated.
According to this feature structure; During the oil pressure that the oil pressure of engage side member is increased increases with the oil pressure minimizing that the oil pressure that separates side member is reduced during at least a portion repetition; Thereby in regeneration, fall in the retaining process, also can utilize engage side member and separation these both sides of side member or arbitrary side to come to transmit regenerative torque to wheel side.Thereby, can not produce regenerative torque be not passed to wheel side during.In addition; The expected value of setting according to regenerative torque after the increase of oil pressure of engage side member is that target increases oil pressure; Thereby the frictional engagement member that transmits regenerative torque also can suitably transmit regenerative torque to wheel side after the separation side member is transferred to the engage side member.Therefore, when retaining falls in regenerating, can prevent because of regenerative torque cause to the temporary transient situation about descending of vehicle braked, thereby can keep vehicle braked based on regenerative torque.
In addition; Retaining falls in order to accomplish; Need to increase the rotating speed of input link, but according to this feature structure, when in regenerating, falling retaining; Can guarantee the transmission of the propulsive effort between rotating machine and the wheel, thereby can suppress regenerative torque not to be passed to wheel side and situation that the power that reduces as the rotating speed that makes input link plays a role.Thereby, when retaining falls in regenerating, the rotating speed that can suppress input link descends, thereby can shorten to accomplish fall till the retaining during.
In addition, according to this feature structure, on one side the regenerative torque that transmits through the engage side member is increased, Yi Bian make overlappingly through separating the regenerative torque minimizing that side member transmits.Thus, the frictional engagement member of the transmission of bearing regenerative torque is successfully transferred on the engage side member overlappingly from separating side member.Thereby, can suppress change to the moment of torsion of wheel side transmission.
Description of drawings
Fig. 1 shows the scheme drawing of structure of the vehicle-use transmission device of embodiment of the present invention.
Fig. 2 shows the block diagram of structure of the control setup of embodiment of the present invention.
Fig. 3 shows the sequential chart of processing of the control setup of of the present invention embodiment.
Fig. 4 shows employed figure in the processing of the control setup of of the present invention embodiment.
Fig. 5 shows the diagram of circuit of processing of the control setup of of the present invention embodiment.
The specific embodiment
With reference to accompanying drawing, the embodiment of vehicle-use transmission device 1 of the present invention is described.Fig. 1 shows the scheme drawing of schematic configuration of the vehicle-use transmission device 1 of this embodiment.As shown in the drawing, the vehicle that vehicle-use transmission device 1 is installed is to have rotating machine MG and as these both sides of driving engine E of combustion engine motor vehicle driven by mixed power as drive force source.In the figure, solid line is represented the bang path of propulsive effort, and dotted line representes to move the feed path of oil, and long and short dash line is represented the feed path of electric power.As shown in the drawing, say that roughly the vehicle-use transmission device 1 of this embodiment has driving engine E and rotating machine MG as drive force source, and the propulsive effort of these drive force source is passed to wheel W via turbine transformer TC and speed-changing mechanism TM.Vehicle-use transmission device 1 has: as the tween drive shaft M of input link, it drives with driving engine E and rotating machine MG and is connected; As the output shaft O of output link, it drives with wheel W and is connected; Speed-changing mechanism TM, it has a plurality of frictional engagement member C1, B1 ..., and have a plurality of speed changes retainings that joint and separation through controlling these a plurality of frictional engagement members form; Control setup 31, its control speed-changing mechanism TM.In addition, this vehicle-use transmission device 1 has the hydraulic pressure control device PC that is used for supplying with to each one such as turbine transformer TC and transmission system TM the action oil of regulation oil pressure.Vehicle-use transmission device 1 has respectively transfer input shaft speed sensors Se1, tween drive shaft tachogen Se2 and the OSS Se3 that the rotating speed to input shaft I, tween drive shaft M and output shaft O detects.
In such structure, the control setup 31 of this embodiment has characteristic in control, and this control is, in rotating machine MG output regenerative torque Tg, and the control when falling retaining during the joint through controlling a plurality of frictional engagement members and separating is regenerated.In addition, fall retaining and be meant, be transferred to the speed change of the big speed change retaining of converter speed ratio.That is, in regenerating, fall when retaining, this control setup 31 is at first according to regenerative torque Tg, the frictional engagement member of setting an engaged side be after the transfer torque capacity of engage side member increases expected value, be that target increases capacity Tf.Then; The transfer torque capacity of engage side member is increased to till the said target increase capacity Tf; And in during the torque capacity of the regulation that during at least a portion and torque capacity increase, repeats reduces, the frictional engagement member that reduces a separated side promptly separates the transfer torque capacity of side member.Below, the vehicle-use transmission device 1 and the control setup 31 of this embodiment is elaborated.
1. the structure of the drive transmission systems of vehicle-use transmission device
At first, the structure to the drive transmission systems of the vehicle-use transmission device 1 of this embodiment describes.As shown in Figure 1, vehicle-use transmission device 1 is that parallel hybrid vehicles is used actuating device, has driving engine E and rotating machine MG uses drive force source as vehicular drive, and these driving engine E are in series driven with rotating machine MG and are connected.In addition; Vehicle-use transmission device 1 has turbine transformer TC and speed-changing mechanism TM; Utilize this turbine transformer TC and speed-changing mechanism TM, come carrying out speed change, and moment of torsion is carried out conversion and is passed to output shaft O as the driving engine E of drive force source and the rotating speed of rotating machine MG.
Driving engine E comes internal combustion engine driven through combustion fuel, for example, can utilize known various driving engines such as engine petrol or diesel motor.In this example, the output rotating shafts such as bent axle of driving engine E are connected with input shaft I driving via transmitting power-transfer clutch EC.Thus, input shaft I optionally drives with driving engine E via transmission power-transfer clutch EC and is connected.This transmission power-transfer clutch EC is the frictional engagement member, accepts the supply through the oil of the action after the hydraulic pressure control device PC pressure regulation, and by not shown pressure control valve control, engages thus or separates.In addition, also the output rotating shaft of preferred engine E drives with input shaft I with the one mode and is connected, and perhaps waits other members to drive with input shaft I via bumper (damper) and is connected.
Rotating machine MG has stator 12a that is fixed on the not shown casing and the rotor 12b that rotates the radially inner side that is supported on this stator 12a freely.The rotor 12b of this rotating machine MG is connected to drive with this input shaft I with the mode of input shaft I one rotation.That is, in this embodiment, input shaft I drives with driving engine E and these both sides of rotating machine MG and is connected.Rotating machine MG is electrically connected with storage battery 26 as electrical storage device.And rotating machine MG can bring into play the function that produces the motor (electrical motor) of power through the supply of accepting electric power and produce the function of the electrical generator (generator) of electric power with performance through the supply of accepting power.That is, rotating machine MG draws through accepting to supply with from the electric power of storage battery 26, perhaps utilizes the rotary driving force that passes over from driving engine E and wheel W to generate electricity and electric power is stored to storage battery 26.In addition, storage battery 26 is examples of electrical storage device, can also utilize other electrical storage devices such as cond, perhaps and with the electrical storage device of a plurality of types.In addition, the generating with rotating machine MG is called regeneration below, and the negative torque that will in generating, be exported by rotating machine MG is called regenerative torque Tg.
In this vehicle-use transmission device 1, when vehicle slows down, transmit power-transfer clutch EC and separate, and driving engine E is in halted state, the lock-up clutch LC of turbine transformer TC is engaged.And rotating machine MG is in and utilizes the rotary driving force that passes over from wheel W to generate electricity on one side, Yi Bian export the state of regenerative torque Tg.
Input shaft I drives with turbine transformer TC and is connected.Turbine transformer TC is with being passed to the device of speed-changing mechanism TM via tween drive shaft M with the rotary driving force that drives bonded assembly input shaft I as the driving engine E of drive force source and rotating machine MG.This turbine transformer TC have pump impeller TCa, conduct and tween drive shaft M that conduct and input shaft I drive bonded assembly input side rotating member drive bonded assembly outgoing side rotating member turbine TCb, be arranged between them and have the guide wheel TCc of free-wheel clutch.And turbine transformer TC is via being filled in its in-to-in action oil transmission of drive force between the turbine TCb of the pump impeller TCa of drive side and slave end.
Here, turbine transformer TC has lock-up clutch LC, to use the frictional engagement member as locking.This lock-up clutch LC is so that pump impeller TCa is connected the power-transfer clutch of these pump impellers TCa and turbine TCb with the mode of turbine TCb one rotation, so that improve transmission efficiency through the speed discrepancy of eliminating between pump impeller TCa and the turbine TCb (skidding).Therefore, turbine transformer TC is under the engagement state of lock-up clutch LC, and not via action oil and directly the propulsive effort with drive force source (input shaft I) is passed to speed-changing mechanism TM (tween drive shaft M).In this embodiment, this lock-up clutch LC is in engagement state basically, and input shaft I and tween drive shaft M move under the state of one rotation thus.Therefore, in this embodiment, input shaft I and tween drive shaft M are rotated with the rotating speed that equates each other basically.To the turbine transformer TC that comprises lock-up clutch LC, supply with through hydraulic pressure control device PC and carry out the action oil after the pressure regulation.
Drive with speed-changing mechanism TM as the tween drive shaft M of the output shaft of turbine transformer TC and to be connected.That is the function of the input shaft of tween drive shaft M performance speed-changing mechanism TM.Speed-changing mechanism TM is grade automatic shift device that has with the different a plurality of speed change retainings of converter speed ratio.Speed-changing mechanism TM have in order to form these a plurality of speed changes retainings gear mechanism such as sun and planet gear and a plurality of frictional engagement member B1, C1 ...In this example, a plurality of frictional engagement member B1, C1 ... It is the engagement member such as power-transfer clutch or drg that has friction member respectively.Through the oil pressure of the action oil supplied with to each frictional engagement member, control these frictional engagement members B1, C1 ... Joint and separation.In addition, through the oil pressure that control is supplied with, can control continuously these frictional engagement members B1, C1 ... The increase and decrease of transfer torque capacity.That is, through the oil pressure that is supplied to each frictional engagement member is controlled, come to a plurality of frictional engagement member B1, C1 ... The increase and decrease of transfer torque capacity control continuously.As such power-transfer clutch, for example can preferably utilize wet multi-plate clutch etc.
The frictional engagement member utilizes the friction between its input and output member to come transfer torque between the input and output member.The transfer torque capacity is the size that the frictional engagement member can utilize the torque peak that transmits of friction.Between the input and output member of frictional engagement member, exist under the situation of speed discrepancy (skidding), transmit the moment of torsion of transfer torque amount of capacity from the member of the big side of rotating speed to the member of the little side of rotating speed.Between the input and output member of frictional engagement member, not existing under the situation of speed discrepancy (skidding), is the upper limit with the size of transfer torque capacity, the moment of torsion of transfer function on the input and output member of frictional engagement member.The size of transfer torque capacity changes with the big or small of oil pressure that is supplied to the frictional engagement member in direct ratioly.
Each frictional engagement member of speed-changing mechanism TM has retracing spring, and the antagonistic force through spring is by to separating the side application of force.And, when the power that produces through the oil pressure of supplying with to each frictional engagement member surpasses the antagonistic force of spring, on each frictional engagement member, beginning to produce the transfer torque capacity, each frictional engagement member is transformed to engagement state from released state.Oil pressure when beginning to produce this transfer torque capacity is called end of travel and presses (stroke end pressure).Each frictional engagement member is after the oil pressure that is supplied to surpasses the end of travel pressure, and the transfer torque capacity of each frictional engagement member and the increase of oil pressure increase in direct ratioly.
The first clutch C1 and the first drg B1 in Fig. 1, have been schematically shown, with a example as a plurality of frictional engagement members.Through the joint or the separation of switching a plurality of frictional engagement members, come the slew mode of a plurality of rotating members that change gear mechanism has, switch the speed change retaining thus.
When switching the speed change retaining, carry out what is called and engage separation switching speed change; Promptly; Make a frictional engagement member in the frictional engagement member that before speed change, is in joint (below; Be referred to as to separate side member) separate, and a frictional engagement member in the frictional engagement member that before speed change, is in separation (below, be referred to as the engage side member) is engaged.Below, to carrying out the speed change retaining that forms at speed-changing mechanism TM is described from the situation of falling retaining that the little bottom gear of converter speed ratio (for example, the 3rd retaining) is transferred to the big top gear of converter speed ratio (for example, second retaining).
Speed-changing mechanism TM carries out speed change and conversion moment of torsion and is passed to output shaft O the rotating speed of tween drive shaft M with the converter speed ratio of the regulation set to each speed change retaining.The moment of torsion that is passed to output shaft O from speed-changing mechanism TM share via differential cross pin DF and be passed to about two wheel W.In addition, in this example, vehicle-use transmission device 1 is that tween drive shaft M and output shaft O are configured in coaxial single-shaft configuration.In addition, in this example, adopt input shaft I, tween drive shaft M and output shaft O all to be configured in coaxial single-shaft configuration.
2. the structure of oil pressure control system
Then, the oil pressure control system to above-mentioned vehicle-use transmission device 1 describes.As shown in Figure 1, oil pressure control system has mechanical pump 23 and motor-drive pump 24 these pumps of two kinds, to store up the oil pressure source that the action oil on not shown food tray and the oil that will move are supplied to each one of vehicle-use transmission device 1 as attraction.Mechanical pump 23 is connected with input shaft I driving via the pump impeller TCa of turbine transformer TC, is driven by side among driving engine E and the rotating machine MG or these both sides' rotary driving force.Motor-drive pump 24 is to drive the oil pump that the propulsive effort with electro-motor 25 moves through pump.The electro-motor 25 that drives motor-drive pump 24 is electrically connected with storage battery 26, produces propulsive effort through acceptance from the supply of the electric power of storage battery 26.This motor-drive pump 24 is the pumps that are used for accessory machinery pump 23, in the stopping of vehicle or low speed driving is medium under the state that can not supply with needed oil mass from mechanical pump 23, move.
In addition, oil pressure control system has the hydraulic pressure control device PC that is used for the oily oil pressure of action from mechanical pump 23 and motor-drive pump 24 supplies is adjusted into the regulation pressure.Detailed here; But hydraulic pressure control device PC is through based on adjusting the aperture of one or more adjustment valve with the signal pressure of linear solenoid valve from oil pressure adjustment, is adjusted into one or more regulation pressure through will move oily oil pressure to the amount adjustment of the action oil of this adjustment valve discharging thus.Be adjusted into action oil content that regulation presses not with the oil pressure of needed grade be supplied to a plurality of frictional engagement member C1 of transmitting power-transfer clutch EC, lock-up clutch LC, turbine transformer TC and speed-changing mechanism TM, B1 ...
3. the structure of control setup
Then, the structure to the control setup 31 of this embodiment describes.Core component performance function as shown in Figure 2, that control setup 31 conducts are controlled the action of each one of vehicle-use transmission device 1.This control setup 31 has arithmetic processing apparatus such as CPU as core component, and have can by this arithmetic processing apparatus read and write data RAM (random access memory), can read the ROM (not shown) such as memory storages such as (read-only memory (ROM)s) of data by arithmetic processing apparatus.And,, constitute each function portion 41～46 of control setup 31 by hardware or the software and hardware both sides such as arithmetical circuit that are stored in the software (program) among the ROM etc. or are provided with separately.These each function portions 41～46 can receive and send messages each other.
In addition, vehicle-use transmission device 1 has sensor Se1～Se5, will input to control setup 31 from the electric signal of each sensor output.Control setup 31 calculates the detection information of each sensor based on the electric signal of being imported.
Transfer input shaft speed sensors Se1 is the sensor that detects the rotating speed of input shaft I.Input shaft I drives with the rotor 12b of rotating machine MG with the one mode and is connected, thereby control setup 31 calculates the rotating speed of input shaft I and rotating machine MG according to the incoming signal of transfer input shaft speed sensors Se1.Tween drive shaft tachogen Se2 is the sensor that detects the rotating speed of tween drive shaft M.Control setup 31 calculates the rotating speed of tween drive shaft M according to the incoming signal of tween drive shaft tachogen Se2.OSS Se3 is the sensor that detects the rotating speed of output shaft O.Control setup 31 calculates the rotating speed of the outgoing side of speed-changing mechanism TM according to the incoming signal of OSS Se3.In addition, the rotating speed and the speed of a motor vehicle of output shaft O are in direct ratio, thereby control setup 31 calculates the speed of a motor vehicle according to the incoming signal of OSS Se3.
In addition, accelerator open degree sensor Se4 is through to detected the sensor of accelerator open degree by the operational ton of the Das Gaspedal of driver's operation.Control setup 31 comes the calculation of throttle aperture according to the incoming signal of accelerator open degree sensor Se4.Speed change shift sensor Se5 is the sensor of the chosen position (speed change gear) that is used to detect shifter bar.Control setup 31 is based on the input information from speed change shift sensor Se5, detects by chaufeur and specified in " forward gear (drive range) ", " two retainings (second range) ", " the low retaining (low range) " etc. which retaining that goes.
As shown in Figure 2, control setup 31 has engine control portion 42, rotating machine control part 43, lock-up clutch control part 44, transmits clutch control portion 45 and speed-changing mechanism control part 46.In addition, speed-changing mechanism control part 46 has and falls retaining control part 41 in the regeneration as the function portion of its subordinate.Below, each function portion 41～46 of control setup 31 is elaborated.
3-1. engine control portion
3-2. rotating machine control part
Rotating machine control part 43 is function portions that the action of rotating machine MG is controlled.Rotating machine control part 43 is handled as follows, that is, decision rotating machine operation point, control rotating machine MG moves with this rotating machine operation point.Here, the rotating machine operation point is the control command value of the controlled target point of expression rotating machine MG, decides this rotating machine operation point by rotating speed and moment of torsion.In more detail, the rotating machine operation point is to consider vehicle requirement output and engine working point and the command value of the controlled target point of the expression rotating machine MG that determines, decides this rotating machine operation point by rotary speed instruction value and torque command value.And rotating machine control part 43 control rotating machine MG are so that rotating machine MG is so that shown moment of torsion and rotating speed move in the rotating machine operation point.In this embodiment, rotating machine control part 43 in the regenerative electric power, is set at negative value with the torque command value when slowing down etc.Thus, Yi Bian rotating machine MG on one side is rotated the regenerative torque Tg that exports negative direction along positive dirction generates electricity.
3-3. lock-up clutch control part
Lock-up clutch control part 44 is function portions of control lock-up clutch LC.Here, lock-up clutch control part 44 is controlled the oil pressure that is supplied to lock-up clutch LC through hydraulic pressure control device PC, controls joint or the separation of lock-up clutch LC thus.In this embodiment, in the regenerative electric power, LC is controlled to be engagement state to lock-up clutch control part 44 with lock-up clutch when slowing down etc.
3-4. transmit clutch control portion
Transmitting clutch control portion 45 is function portions that power-transfer clutch EC is transmitted in control.Here, transmit clutch control portion 45 and control being supplied to the oil pressure that transmits power-transfer clutch EC through hydraulic pressure control device PC, joint or the separation of power-transfer clutch EC transmitted in control thus.In this embodiment, transmit clutch control portion 45 and in the regenerative electric power, will transmit power-transfer clutch EC and be controlled to be released state when slowing down etc.
3-5. speed-changing mechanism control part
Speed-changing mechanism control part 46 is function portions of control speed-changing mechanism TM.Speed-changing mechanism control part 46 decides the target shift speed retaining of speed-changing mechanism TM based on sensor detection information such as the speed of a motor vehicle, accelerator open degree and speed change gears.And speed-changing mechanism control part 46 is controlled the oil pressure of each frictional engagement member of being supplied to speed-changing mechanism TM and being possessed through hydraulic pressure control device PC, makes each frictional engagement member engages thus or separate to come in speed-changing mechanism TM, to form the target shift speed retaining.
Speed-changing mechanism control part 46 decides the target shift speed retaining with reference to the speed change figure that is kept in the not shown memory device.Speed change figure is the figure that has stipulated the relation between the target shift speed retaining of accelerator open degree and the speed of a motor vehicle and speed-changing mechanism TM.In speed change figure, be set with a plurality of liters retaining lines and a plurality of retaining line that falls, change and when on speed change figure, striding across liter retaining line or falling the retaining line the new target shift speed retaining of speed-changing mechanism control part 46 decision speed-changing mechanism TM at the speed of a motor vehicle and accelerator open degree.In addition, when change speed change gear, the target shift speed retaining is also changed.For example, detecting under the situation that changes to 2 retainings or keep out the situation that also exists the target shift speed retaining to be changed.In addition, here, rise the retaining expression and switch to the little speed change retaining of converter speed ratio, fall the retaining expression and switch to the big speed change retaining of converter speed ratio from the little speed change retaining of converter speed ratio from the big speed change retaining of converter speed ratio.
Speed-changing mechanism control part 46 according to new target shift speed keep off control to a plurality of frictional engagement member C1, B1 ... The oil pressure of supplying with, the speed change of switching speed-changing mechanism TM is thus kept off.At this moment, speed-changing mechanism control part 46 makes and separates the side member separation, and makes the engage side member engages.For example, falling when retaining, speed-changing mechanism control part 46 carries out the following retaining control of falling, that is, the separation side member of one of frictional engagement member of forming top gear is separated, and makes the engage side member engages of one of frictional engagement member of forming bottom gear.
3-6. fall the retaining control part in the regeneration
When car retardation etc. in the process of rotating machine MG output regenerative torque Tg; Stride across owing to descending and to fall the retaining line or change speed change gear etc. and fall under the situation of retaining, to fall retaining control part 41 in the regeneration as the function portion of subordinate of speed-changing mechanism control part 46 and fall retaining in regenerating because of the speed of a motor vehicle.
In regenerating, fall when retaining, the expected value of falling in the regeneration after transfer torque capacity that retaining control part 41 at first sets the engage side member according to regenerative torque Tg increases is that target increases capacity Tf.Then; Control as follows; Promptly; During the torque capacity of regulation increases, making the transfer torque capacity of engage side member increase to target increases till the capacity Tf, and at least a portion with during the torque capacity that repeats the regulation of branchs during said torque capacity increases reduces in make the frictional engagement member of a separated side promptly separate the transfer torque capacity minimizing of side member.
In addition; After during the torque capacity of regulation increases, finishing; Fall retaining control part 41 in the regeneration transfer torque capacity of engage side member is increased from the mild degree of dip of degree of dip that target increases during capacity Tf increases with the torque capacity than regulation, so that the speed discrepancy between the input and output member of engage side member reduces.Then; After speed discrepancy between the input and output member of engage side member becomes below the specified value; Control as follows, that is, the transfer torque capacity of engage side member is changed; So that reduce on one side the minimizing speed of the speed discrepancy between the input and output member of engage side member, Yi Bian make rotating speed and the synchronization of output link of the input link of engage side member.In the embodiment below, with reference to Fig. 3, to falling retaining control and describe by falling the regeneration carried out of retaining control part 41 in the regeneration.
3-6-1. control the stage (Pre-control Phase) in advance
When car retardation etc. in the rotating machine MG output regenerative torque Tg process; Change to bottom gear and exist and fall retaining when requiring from top gear at target shift speed retaining, fall in the regeneration retaining control part 41 will control the stage from common control phase transition to the preparatory control stage (moment t11 of Fig. 3).
The control stage is to make the transfer torque capacity that separates side member and engage side member or supply with the stage that oil pressure changes in advance in advance.Through setting this preparatory control stage, the control response property that can improve the engage side member and separate the transfer torque capacity of side member.Thereby, can with the transfer torque capacity that begins to increase the engage side member synchronously, begin to reduce the transfer torque capacity that separates side member.And, with regard to the frictional engagement member that transmits regenerative torque Tg to wheel W side, be transferred to the engage side member overlappingly from separating side member.
In this embodiment; After being transferred to the preparatory control stage (t11 constantly); Fall retaining control part 41 in the regeneration and begin to produce the transfer torque capacity, begin to carry out supplying with the control of the action oil of the engage side preparation pressure of stipulating to the engage side member in order to make the engage side member.The preparation of this engage side pressed be set in order to make action oil be full of oil hydraulic cylinder and the required pressure of engage side member.In this example, engage side preparation is pressed to be set at the pressure that makes the frictional engagement member begin to produce the transfer torque capacity be that stroke is terminal presses.And, falling retaining control part 41 in the regeneration this engage side preparation is pressed as the instruction pressure, PC sends instruction to hydraulic pressure control device, and hydraulic pressure control device PC supplies with the action oil that instruction is pressed to the engage side member.In addition, in this example, shown in the example of Fig. 3, after beginning to supply with action oil, fall retaining control part 41 in the regeneration and control as follows, that is, set moment and press high instruction to press, to accelerate the rising of actual pressure than the engage side preparation.
After being transferred to the preparatory control stage, falling retaining control part 41 in the regeneration and begin to make the transfer torque capacity that separates side member to be reduced to the control of the separation side reserve capacity of setting according to regenerative torque Tg.Separate the side reserve capacity and be set to, separate the score of side reserve capacity can be passed to whole regenerative torque Tg wheel W side from side member the big specified volume of minimal transfer torque capacity.
When the top gear that is in before falling retaining, to the input torque of speed-changing mechanism TM input all via each gearing that forms top gear in the separation side member.Therefore, fall retaining control part 41 in the regeneration, calculate the moment of torsion that acts on the separation side member and promptly separate side input torque Tif based on the ratio of number of teeth of input torque with each gear that forms top gear.Promptly; As following formula (1); Falling retaining control part 41 in the regeneration calculates the regenerative torque Tg as input torque multiply by the separation side transmission obtained based on the ratio of number of teeth of each gear that forms top gear than Rf and the value of obtaining is used as separating side input torque Tif.In addition, in regenerating, fall retaining control during, always calculate and should separate side input torque Tif, and computing value is reflected in each control.
Tif＝Tg×Rf …（1）
Falling retaining control part 41 calculating separation side members in the regeneration can be through the friction between its input and output member with all separating the minimal transfer torque capacity that side input torque Tif is passed to wheel W side.Then, set separation side reserve capacity based on separating side input torque Tif.In this example, will add the safety value of regulation to the size of separating side input torque Tif and the value that draws is set at and separates the side reserve capacity.The safety value of this regulation is set at, can be because of the value of error component or the interference degree that generation is skidded between the input and output member that separates side member.
Fall retaining control part 41 in the regeneration and calculate and separate side preparation oil pressure according to separating the side reserve capacity, and make to separate oil pressure that the side engagement member supplies be reduced to separate side preparation oil pressure till.
In addition; The transfer torque capacity of each frictional engagement member and to supply with characteristic between the oil pressure be to wait the characteristic that probably calculates according to the radius of the area of friction lining, friction coefficient, piston area, retracing spring power, friction lining; In this example; Store the transfer torque capacity of each frictional engagement member in the drawings and supply with the characteristic between the oil pressure, can come from the transfer torque capacity to the oil pressure conversion based on characteristic map aptly.
In this embodiment, in advance the control stage begin after and passed through under the situation (t12 constantly) during the preparatory control of regulation, fall in the regeneration retaining control part 41 will control the stage from preparatory control phase transition to the torque control stage.With this be set at during the control in advance begin to the engage side member supply with the engage side preparation press after till the engage side member is begun produce the transfer torque capacity during, be till actual oil pressure arrives engage side to prepare pressure during.Change owing to move the viscosity of oil because of the variation of oil temperature, thus till arriving the engage side preparation and pressing during according to oily temperature and change.In order to adapt to change during this period, set preparatory control according to the oily temperature of action oil during.
3-6-2. the torque control stage
Begin to produce under the situation of transfer torque capacity at the engage side member, fall in the regeneration retaining control part 41 make the control stage from preparatory control phase transition to the torque control stage.
At torque control in the stage; The relation of moment of torsion is transferred to the state of bottom gear from top gear; The rotating speed of state that remains on top gear but the relation of rotating speed does not change is constant; The engage side member becomes on one side through overall viewing range on one side at the state that skids, and separating side member becomes released state.That is, in the stage, the relation of rotating speed keeps the relation of top gear and does not change at torque control, and only moment of torsion is shared the relation that is transferred to bottom gear from top gear.
Beginning torque control after the stage, the expected value of falling in the regeneration after transfer torque capacity that retaining control part 41 is set in the engage side member that torque control increases in the stage according to regenerative torque Tg increases is that target increases capacity Tf.
When the torque control stage finished, moment of torsion was shared from top gear and is transferred to bottom gear, to the input torque of speed-changing mechanism TM input all via each gearing that forms bottom gear in the engage side member.Therefore, fall retaining control part 41 in the regeneration based on the ratio of number of teeth of input torque with each gear that forms bottom gear, calculating the moment of torsion that acts on the engage side member is engage side input torque Tie.Promptly; As following formula (2); Fall retaining control part 41 in the regeneration and calculate the regenerative torque Tg as input torque multiply by the value that the engage side transmission obtained based on the ratio of number of teeth of each gear that forms bottom gear obtains than Re, be used as engage side input torque Tie.
Tie＝Tg×Re …（2）
Falling retaining control part 41 calculating engage side members in the regeneration can be passed to the minimal transfer torque capacity of wheel W with whole engage side input torque Tie through the friction between its input and output member, and is set at target increase capacity Tf.That is, as following formula (3), the size of engage side input torque Tie is set at target increases capacity Tf.
Tf＝｜Tie｜…（3）
In addition, in regenerating, fall retaining control during, always calculating this engage side input torque Tie and target increases capacity Tf, and computing value is reflected in each control.
Fall retaining control part 41 in the regeneration and during the torque capacity of regulation increases, make the transfer torque capacity of engage side member increase to target to increase capacity Tf, and at least a portion with during the torque capacity of the regulation that repeats during said torque capacity increases reduces in minimizing separate the transfer torque capacity of side member.
In this embodiment; The zero hour (t12 constantly) during increase with torque capacity the zero hour during torque capacity reduces (t12 constantly), the finish time (t13 constantly) during increase with torque capacity the finish time during torque capacity reduces (t13 constantly) synchronously synchronously.That is (t12～t13) and (moment t12～t13) consistent during torque capacity reduces constantly during, torque capacity increases.In addition, the torque control stage during with during torque capacity increases and torque capacity consistent during reducing.
Fall retaining control part 41 in the regeneration and will multiply by engage side share ratio A and the value that draws regenerative torque Tg; Being set at the regenerative torque Tg that shares transmission by the engage side member is that engage side is shared regenerative torque Tge; And; To multiply by the value of separating side share ratio B and drawing to regenerative torque Tg and be set at, and share the regenerative torque Tg of transmission and promptly separate side and share regenerative torque Tgr by separating side member.Separating side share ratio B is set to; To add the value that together draws be 1.0 to engage side share ratio A with separating side share ratio B; And, being set to, engage side is shared regenerative torque Tge and is separated side and share regenerative torque Tgr to add the value that together draws be regenerative torque Tg.Thereby, be passed to wheel W side by the engage side member with separating side member to share whole regenerative torque Tg.
Falling retaining control part 41 in the regeneration makes engage side share ratio A increase to 1.0 from 0 in (torque control stage during) during torque capacity increases.In this embodiment, engage side share ratio A increases with first degree of dip of regulation gradually, and first degree of dip of this regulation is set at 1.0 divided by the value that draws during the torque capacity increase.Thereby the moment of torsion that transmits regenerative torque Tg is shared during torque capacity increases in (torque control stage during) and is transferred to the engage side member gradually from the separation side member.
Fall the transfer torque capacity of retaining control part 41 control engage side members in the regeneration, be passed to wheel W side so that the engage side member is shared regenerative torque Tge with the engage side among whole regenerative torque Tg.That is, the transfer torque capacity of retaining control part 41 control engage side members falls in the regeneration, so that the engage side member will multiply by engage side share ratio A and the moment of torsion that draws is passed to wheel W side to engage side input torque Tie.
Particularly; As following formula (4); Fall retaining control part 41 in the regeneration and will multiply by the value that the engage side transmission draws than Re and engage side share ratio A regenerative torque Tg; Be set at the engage side overall viewing range that the engage side member can transmit through the friction between its input and output member, and the size of engage side overall viewing range is set at the target transfer torque capacity Tc of engage side member.
Tc＝｜Tg×Re×A｜＝｜Tie×A｜…（4）
Then, fall retaining control part 41 in the regeneration and the target transfer torque capacity Tc of engage side member is transformed to the target oil pressure, and supply with the action oil of target oil pressure to the engage side member through hydraulic pressure control device PC based on the characteristic map of engage side member.In addition, fall retaining control part 41 in the regeneration and also can multiply by the value that the engage side transmission draws than the safety coefficient of Re, engage side share ratio A and regulation, be set at the engage side overall viewing range regenerative torque Tg.The safety coefficient of this regulation is set at, even error component is arranged or disturb also the minimal value (for example 1.1) that can whole regenerative torque Tg be passed to wheel W side.
Likewise, fall the transfer torque capacity that 41 controls of retaining control part separate side member in the regeneration, be passed to wheel W side so that the separation side member is shared regenerative torque Tgr with the separation side among whole regenerative torque Tg.That is, fall the transfer torque capacity that 41 controls of retaining control part separate side member in the regeneration, be passed to wheel W side so that the separation side member will multiply by the moment of torsion that separates side share ratio B and draw to separation side input torque Tif.
Particularly; As following formula (5); Falling retaining control part 41 in the regeneration will multiply by separation side share ratio B and separate the value that the side transmission draws than Rf regenerative torque Tg; Be set at and separate the separation side overall viewing range that side member can transmit through the friction between its input and output member, and the size that will separate the side overall viewing range is set at the target transfer torque capacity Tr of separation side member.Then, fall retaining control part 41 in the regeneration and the target transfer torque capacity Tr that separates side member is transformed to the target oil pressure, and supply with the action oil of target oil pressure to separating side member through hydraulic pressure control device PC based on the characteristic map that separates side member.
Tr＝｜Tg×Rf×B｜＝｜Tif×B｜…（5）
3-6-3. the inertia control stage
Fall retaining control part 41 in the regeneration after the transfer torque capacity that makes the engage side member increases to target increase capacity Tf, the stage of will controlling is controlled the stage (t13 constantly) from torque control phase transition to inertia.
In the inertia control stage, the transfer torque capacity through making the engage side member makes the transfer torque of engage side member surpass regenerative torque Tg greater than the size via the regenerative torque Tg of gearing.Then, the moment of torsion that passes through to be surpassed is a surplus torque, makes the rotating speed of the input link side of engage side member increase to the rotating speed of output link side, is transferred to the state that between the input and output member of engage side member, does not have speed discrepancy (skidding) thus.Gathering way of the rotating speed of this input link side is in direct ratio with surplus torque, and inversely proportional with the inertia (moment of inertia) of input link side.
In this embodiment; Falling retaining control part 41 in the regeneration after the control stage, makes the transfer torque capacity of engage side member increase the control that capacity Tf increases gradually with second degree of dip that is set at the size littler than first degree of dip from target at beginning inertia.As following formula (6); Falling retaining control part 41 in the regeneration is set at the target transfer torque capacity Tc of engage side member; The size that increases the engage side input torque Tie that uses among the capacity Tf at target setting is added particular value and the value that obtains, and this particular value is that the second degree of dip K2 multiply by beginning inertia elapsed time T2 and value of drawing after the control stage.
Tc＝｜Tie｜＋K2×T2…（6）
Fall retaining control part 41 in the regeneration and the target transfer torque capacity Tc of engage side member is transformed to the target oil pressure, and supply with the action oil of target oil pressure to the engage side member through hydraulic pressure control device PC based on the characteristic map of engage side member.
The transfer torque capacity of engage side member that surpasses the size of engage side input torque Tie becomes surplus torque, and the rotating speed of the input link side of engage side member (tween drive shaft M) increases thus.
Here, as above-mentioned, engage side input torque Tie is always calculated, owing to engage side input torque Tie along with the variation of regenerative torque Tg changes, thereby target transfer torque capacity Tc also changes along with the variation of regenerative torque Tg.For example, in Fig. 3, after the moment t14 as being shown in dotted line, when the size of regenerative torque Tg increases and decreases, with the increase and decrease of the size of regenerative torque Tg accordingly, the target transfer torque capacity of engage side member increases and decreases.
Increase and deduct the rotating speed of tween drive shaft M and the promptly poor rotating speed W1 of speed discrepancy that draws when to be specified value Δ W following (t15 constantly) at the rotating speed of tween drive shaft M from the target input speed of bottom gear; Fall retaining control part 41 in the regeneration and be transferred to the minimizing speed DW2 minimizing that makes poor rotating speed W1 on one side, Yi Bian make the rotating speed of tween drive shaft M and the synchronous controlled reset of target input speed of bottom gear.Particularly; Fall 41 pairs of transfer torque capacity that engage side member of retaining control part in the regeneration and carry out controlled reset; So that the minimizing speed DW2 of difference rotating speed W1 reduces along with the minimizing of difference rotating speed W1, and to make at difference rotating speed W1 be that the minimizing speed DW2 of 0 o'clock poor rotating speed W1 is 0.
Here; The target input speed of bottom gear be the rotating speed of the input link of engage side member consistent with the rotating speed of the output link of engage side member and and the rotating speed of the tween drive shaft M under the state that disappears of the speed discrepancy between the input link of engage side member (skidding), the speed discrepancy between the poor rotating speed W1 of tween drive shaft M and the input and output member of engage side member is in direct ratio.The target input speed of bottom gear is that the rotating speed to output shaft O multiply by the converter speed ratio of bottom gear and the rotating speed that draws.
In this embodiment, falling retaining control part 41 in the regeneration is that target reduces speed DW2 according to the expected value that difference rotating speed W1 sets the minimizing speed of poor rotating speed W1.Fall retaining control part 41 in the regeneration according to figure as shown in Figure 4, the target minimizing speed DW2 of poor rotating speed W1 is reduced along with the minimizing of difference rotating speed W1.And, fall 41 pairs of transfer torque capacity that engage side member of retaining control part in the regeneration and carry out controlled reset, so that becoming target, the minimizing speed of actual poor rotating speed W1 reduces speed DW2.Fall retaining control part 41 in the regeneration and carry out following controlled reset, that is, when reality reduces speed greater than target minimizing speed DW2, reduce target transfer torque capacity Tc, when reality minimizing speed reduces speed DW2 less than target, increase target transfer torque capacity Tc.This controlled reset acts on as follows, that is, the minimizing along with difference rotating speed W1 is reduced to surplus torque near 0, and target transfer torque capacity is reduced near the size of engage side input torque Tie.Here; Because vehicle is slowing down; Thereby difference rotating speed W1 become 0 o'clock surplus torque than 0 be equivalent to the rotating speed of output shaft O greatly the size of minimizing speed, target transfer torque capacity also is equivalent to the size of minimizing speed of the rotating speed of output shaft O greatly than the size of engage side input torque Tie.
After the synchronization of the rotating speed of the input link of engage side member and output link (constantly after the t16), fall retaining control part 41 in the regeneration and make the control till the transfer torque capacity of engage side member increases to the full engagement capacity.
At first, fall retaining control part 41 in the regeneration and judge whether the target input speed of rotating speed and bottom gear of tween drive shaft M is synchronous.Fall retaining control part 41 in the regeneration under the situation that the minimizing speed that differs from rotating speed W1 and difference rotating speed W1 becomes enough little, be judged to be synchronous.In this embodiment, rotating speed W1 becomes below the specified value in difference, and the acceleration/accel of difference rotating speed Δ W becomes specified value when following (moment t16), is judged to be synchronous.
Fall retaining control part 41 in the regeneration and be judged to be under the synchronous situation, the target transfer torque capacity Tc of engage side member is increased to till the full engagement capacity gradually.In this embodiment, set this full engagement capacity enough big, even make, between the input and output member of engage side member, do not produce speed discrepancy (skidding) from the input torque increase of rotating machine MG or driving engine E yet.Fall retaining control part 41 in the regeneration after being judged to be synchronously, the target transfer torque capacity Tc that makes the engage side member increases with the 3rd degree of dip that (moment t16～t17) increases to ladder property (moment t17) till the full engagement capacity afterwards.Fall retaining control part 41 in the regeneration and the target transfer torque capacity Tc of engage side member is transformed to the target oil pressure, and supply with the action oil of target oil pressure to the engage side member through hydraulic pressure control device PC based on the characteristic map of engage side member.Like this; Because the transfer torque capacity is increased in during very short gradually; Thereby be judged to be under the synchronous situation, even produce difference rotating speed Δ W, difference rotating speed Δ W also is reduced to 0; Transfer torque at the engage side member of engage side member during to the full engagement state transitions is changed lentamente, thereby can suppress the generation of torsional impact.
Fall in the regeneration retaining control part 41 till making target transfer torque capacity Tc increase to the full engagement capacity after (constantly t17), the stage of will control is from inertia control phase transition to control stage usually, and finishes regeneration and fall retaining and control.
3-6-4. fall the step of the control and treatment of retaining control part in the regeneration
Then, with reference to the diagram of circuit of Fig. 5, the control and treatment of falling retaining control part 41 in the regeneration is described.Fig. 5 shows the diagram of circuit to the control and treatment step of falling the engage side member that keeps off in the control in the regeneration and controlling the transfer torque capacity that separates side member.
At first; Falling retaining control part 41 in the regeneration falls under the situation of keeping off requirement (step #11: " being ") in having regeneration; The processing of retaining control is fallen in beginning to regenerate; As above-mentioned,, begin to carry out control (step #12) to the action oil of engage side member engage side preparation pressure according to the rules in order to begin to generate the transfer torque capacity of engage side member.Then, as above-mentioned, begin to make the control (step #13) till the transfer torque capacity that separates side member is reduced to the separation side reserve capacity of setting according to regenerative torque Tg.Thereafter; As above-mentioned; Falling retaining control part 41 in the regeneration begins to produce under the situation of transfer torque capacity (step #14: " being ") being judged to be the engage side member; Come target setting to increase capacity Tf according to regenerative torque Tg, and make the transfer torque capacity of engage side member increase to the control (step #15) till target increases capacity Tf in beginning to carry out during the torque capacity of regulation increases.Simultaneously, make the transfer torque capacity that separates side member from separating the control (step #16) of side reserve capacity minimizing in beginning to carry out during the torque capacity minimizing of regulation.Thereafter; As above-mentioned; Fall retaining control part 41 in the regeneration and increase to target at the engage side member and increase under the situation of capacity Tf (step #17: " being "), begin to make the transfer torque capacity of engage side member to increase the control (step #18) of capacity Tf increase from target with milder degree of dip.Thereafter; As above-mentioned, falling the speed discrepancy of retaining control part 41 between the input and output member of engage side member in the regeneration becomes (step #19: " being ") under the situation below the specified value, begins to control as follows; Promptly; The transfer torque capacity of engage side member is changed, Yi Bian so that reduce the minimizing speed of this speed discrepancy, Yi Bian make rotating speed and the synchronization (step #20) of output link of the input link of engage side member.Thereafter; As above-mentioned; Fall retaining control part 41 (step #21: " being ") under the synchronous situation of the rotating speed between the input and output member of engage side member in the regeneration, begin to make the control (step #22) till the transfer torque capacity of engage side member increases to the full engagement capacity., in regeneration fall retaining control part 41 at the transfer torque capacity of engage side member increase to the situation of full engagement capacity under (step #23: " be "), finish to fall in the regeneration processing of retaining control thereafter.
[other embodiments]
At last, other embodiments of the present invention are described.In addition, the structure of each embodiment of explanation is not limited to use individually respectively below, only otherwise produce contradiction, just can with the textural association use of other embodiments.
(1) in the above-described embodiment; Following example has been described; That is, target is increased the example of situation that capacity Tf is set at the size that can be engage side input torque Tie through the minimal transfer torque capacity that the friction between the input and output member of engage side member is passed to wheel W with whole engage side input torque Tie.But embodiment of the present invention is not limited thereto.Promptly; Come target setting to increase capacity Tf based on the size of engage side input torque Tie; For example, following mode also be of the present invention one of preferred embodiment, that is: target is increased capacity Tf and is set at from the size of engage side input torque Tie and increases or reduce specified value and the value that draws.
(2) in the above-described embodiment, explained torque capacity is reduced during with the example of situation consistent during torque capacity increases.But embodiment of the present invention is not limited thereto.That is the zero hour that, also can be set at during the zero hour and the torque capacity increase during torque capacity is reduced is inconsistent.The finish time that also can be set at during the finish time and the torque capacity increase during torque capacity is reduced in addition, is inconsistent.Perhaps, also can make and reduce and to increase these both sides all inconsistent.In a word, if be set at increase with torque capacity during torque capacity is reduced during at least a portion repeat.
(3) in the above-described embodiment; Following example has been described, that is, and at torque control in the stage; Engage side share ratio A increases to 1.0 with first degree of dip from 0.0; Separate side share ratio B and be reduced to 0.0 with first degree of dip from 1.0, the transfer torque capacity of engage side member increases with certain degree of dip thus, the example of the situation that the transfer torque capacity that separates side member reduces with certain degree of dip.But embodiment of the present invention is not limited thereto.That is, following mode also is that of the present invention one of preferred embodiment that is: engage side share ratio A increases to 1.0 with waveform arbitrarily from 0.0, separates side share ratio B and is reduced to 0.0 with waveform arbitrarily from 1.0.At this moment, also can be set at and make engage side share ratio A to add the value that together draws be 1.0 with separating side share ratio B.
In addition, also can so that engage side share ratio A with separate side share ratio B and add the value that together draws and do not become 1.0 mode, make engage side share ratio A increase to 1.0 from 0.0, and make and separate side share ratio B and be reduced to 0.0 from 1.0.
(4) in the above-described embodiment; Following example has been described; Promptly; Before during the beginning torque capacity reduces, the transfer torque capacity that separates side member is reduced to than the example that can whole regenerative torques be passed to the situation till the transfer torque capacity of the big specified value of minimal transfer torque capacity of wheel W side by speed-changing mechanism TM.But embodiment of the present invention is not limited thereto.Promptly; Following mode also be of the present invention one of preferred embodiment; That is: said specified value is set at 0; In other words, before during the minimizing of beginning torque capacity, make the transfer torque capacity that separates side member be reduced to the minimal transfer torque capacity that whole regenerative torques is passed to wheel W side by speed-changing mechanism TM.
(5) in the above-described embodiment, following example has been described, promptly; After difference rotating speed W1 becomes below the specified value Δ W; Through controlled reset, Yi Bian reduce the minimizing speed DW2 of difference rotating speed W1, Yi Bian make the example of the synchronous situation of the target input speed of rotating speed and bottom gear of tween drive shaft M.But embodiment of the present invention is not limited thereto.Promptly; Following mode also be of the present invention one of preferred embodiment; That is: after difference rotating speed W1 becomes below the specified value Δ W; Do not carry out controlled reset, and change as shown in Figure 3 is such, the transfer torque capacity that makes the engage side member is reduced to the size of engage side input torque Tie with the degree of dip of regulation.At this moment, also can be reduced to the time point of the size of engage side input torque Tie, begin to make the control till the transfer torque capacity of engage side member increases to the full engagement capacity at the transfer torque capacity that makes the engage side member.Even constitute like this, surplus torque is reduced along with the minimizing of difference rotating speed W1, thereby can reduce the minimizing speed DW2 of poor rotating speed W1.In addition; At this moment, also can be preferably, under the situation that the size of engage side input torque Tie has taken place to change; Change the transfer torque capacity of engage side member according to the variable quantity of engage side input torque Tie, realize the change as being shown in dotted line of Fig. 3 thus.
(6) in the above-described embodiment, following example has been described, that is, after the control stage, the transfer torque capacity of engage side member has been increased at beginning inertia, the example of the situation till difference rotating speed W1 becomes below the specified value Δ W with the degree of dip of stipulating.But embodiment of the present invention is not limited thereto.That is, following mode also be of the present invention one of preferred embodiment, that is: at beginning inertia after the control stage, on one side increase the minimizing speed DW2 of difference rotating speed W1, reduce difference rotating speed W1 on one side, till difference rotating speed W1 becomes below the specified value Δ W.At this moment, can carry out, also can carry out controlled reset as follows through controlled reset; That is, utilize the figure as Fig. 4 illustrates, reduce speed W2 according to difference rotating speed W1 target setting; And make the transfer torque volume change of engage side member, so that actual minimizing speed and target reduce speed W2 is consistent.
(7) in the above-described embodiment; Following example has been described, that is, later as being shown in dotted line at the moment of Fig. 3 t14; In the inertia control stage, increase and decrease the example of situation of the target transfer torque capacity Tc of engage side member according to the variation of regenerative torque Tg.But embodiment of the present invention is not limited thereto.Promptly; Also can in regeneration, fall retaining the term of execution, change the target transfer torque capacity Tc of engage side member according to the variation of regenerative torque Tg, for example; Following mode also be of the present invention one of preferred embodiment; That is: in the stage,, change the target transfer torque capacity Tc of engage side member according to the variation of regenerative torque Tg at torque control according to formula (4).
In addition, also can with the engage side member likewise, in regeneration, fall retaining the term of execution; Variation according to regenerative torque Tg changes the target transfer torque capacity that separates side member; For example, following mode also be of the present invention one of preferred embodiment, that is: at torque control in the stage; According to formula (5), change the target transfer torque capacity Tr of separation side member according to the variation of regenerative torque Tg.
(8) in the above-described embodiment; Following example has been described; Promptly; Fall target transfer torque capacity Tc, Tr that retaining control part 41 calculates the engage side member and separates side member in the regeneration, and this target transfer torque capacity Tc, Tr are transformed to the example of target oil pressure with the action oil condition of supply target oil pressure based on the characteristic map of engage side member and separation side member.Thus; In fact; The following control of control setup 31 execution, that is, and when falling retaining during the joint of a plurality of frictional engagement members of control and separation are regenerated in the process of rotating machine MG output regenerative torque Tg; The expected value of setting according to regenerative torque Tg after the increase of oil pressure of engage side member is that target increases oil pressure Pf; And (torque capacity increase during) makes the oil pressure of engage side member increase to target to increase oil pressure Pf during the oil pressure of regulation increases, and minimizing separates the oil pressure of side member at least a portion and (torque capacity reduce during) during the oil pressure of the regulation that repeats during oil pressure increases reduces.But of the present invention embodiment is not limited thereto.For example, falling retaining control part 41 in the regeneration, also can not calculate intermediate variable be target transfer torque capacity Tc, Tr, and the target oil pressure that directly calculates the engage side member and separate side member is to supply with the action oil of target oil pressure.
At this moment; Falling retaining control part 41 in the regeneration also can fall in regenerating when keeping off; The expected value of setting according to regenerative torque Tg after the increase of oil pressure of engage side member is that target increases oil pressure Pf, and makes the oil pressure of engage side member increase to target in during the oil pressure of regulation increases to increase oil pressure Pf.For example; Fall in the regeneration that retaining control part 41 replaces formula (2), formula (3) and as following formula; Based on the characteristic map Fc () of engage side member, will multiply by the value transform that the engage side transmission draws than Re to the size of regenerative torque Tg is that target increases oil pressure Pf.
Pf＝Fc（｜Tg｜×Re）…（7）
Then; Fall retaining control part 41 in the regeneration and during the oil pressure of regulation increases, make the target oil pressure Pc of engage side member increase to target in (torque capacity increase during) to increase oil pressure Pf, and during the oil pressure of the regulation that at least a portion and (torque capacity increase during) during oil pressure increases repeat reduces, make the target oil pressure Pr minimizing that separates side member in (torque capacity reduce during).For example, falling retaining control part 41 in the regeneration replaces formula (4) and as following formula, utilizes above-mentioned engage side share ratio A to set the target oil pressure Pc of engage side member.
Pc＝Pf×A …（8）
In addition, fall retaining control part 41 in the regeneration and replace formula (5) as following formula, utilize the characteristic map Fr () of separation side member and above-mentioned separation side share ratio B, set the target oil pressure Pr that separates side member.
Pr＝Fr（｜Tg｜×Rf）×B…（9）
In addition, at this moment, fall retaining control part 41 in the regeneration and also can make the target oil pressure Pc of engage side member little by little increase oil pressure Pf increase at beginning inertia after the control stage from target with second degree of dip that is set at less than first degree of dip.For example; Fall in the regeneration that retaining control part 41 replaces formula (6) and as following formula; The target oil pressure Pc of engage side member is set at increases that oil pressure Pf adds particular value and the value that obtains to target, and this particular value is that the second degree of dip K2 multiply by elapsed time T2 after the inertia beginning in control stage and the value that draws.
Pc＝Pf＋K2×T2…（10）
Here, in regeneration, fall in the retaining control, target increases oil pressure Pf can always be calculated according to regenerative torque Tg, based on formula (8) and formula (10) variation of regenerative torque Tg is reflected to target oil pressure Pc thus.
In addition, falling retaining control part 41 in the regeneration also can be after difference rotating speed W1 becomes below the specified value Δ W, and the transfer torque capacity that replaces engaging side member carries out controlled reset, and comes the target oil pressure Pc of engagement member is carried out controlled reset based on difference rotating speed W1.
Then, falling retaining control part 41 in the regeneration also can make the target oil pressure Pc of engage side member increase to the full engagement oil pressure after the input and output member of engage side member is synchronous.Set this full engagement oil pressure enough big,, also can between the input and output member of engage side member, not produce speed discrepancy (skidding) even make from the input torque increase of rotating machine MG or driving engine E.
Utilizability on the industry
The present invention can be preferably used for following vehicle-use transmission device, and this vehicle-use transmission device has: input link, and it drives with combustion engine and rotating machine and is connected; Output link, it is connected with wheel drive; Speed-changing mechanism, it has through the joint of a plurality of frictional engagement members and separates a plurality of speed change retainings that Be Controlled forms; Control setup, it controls said speed-changing mechanism.
The explanation of Reference numeral
E-engine (combustion engine)
The MG rotating machine
M tween drive shaft (input link)
O output shaft (output link)
The W wheel
The DF differential cross pin
EC transmits power-transfer clutch
The TM speed-changing mechanism
The PC hydraulic pressure control device
Se2 tween drive shaft tachogen
Se3 output speed sensor
1 vehicle-use transmission device
31 control setups
The retaining control part falls in 41 regeneration
42 engine control portions
43 rotating machine control parts
44 lock-up clutch control parts
45 transmit clutch control portion
Claims (9)
1. vehicle-use transmission device,
Have:
Input link, it is connected with combustion engine and rotating machine and is driven,
Output link, it is connected with wheel driving said wheel,
Speed-changing mechanism, it has a plurality of frictional engagement members, and has a plurality of speed changes retainings that joint and separation through controlling these a plurality of frictional engagement members form,
Control setup, it controls said speed-changing mechanism;
This vehicle-use transmission device is characterised in that,
When falling retaining during the joint through controlling said frictional engagement member in the process of said rotating machine output regenerative torque and separating is regenerated; The expected value of transfer torque capacity after increase that said control setup is set the engage side member according to said regenerative torque is that target increases capacity; And the transfer torque capacity that makes said engage side member in during the torque capacity of regulation increases increases to said target increase capacity; And; During the torque capacity of the regulation that during at least a portion and the increase of said torque capacity, repeats reduces; The transfer torque capacity that separates side member is reduced, and said engage side member is a frictional engagement member of wanting an engaged side, and said separation side member is the frictional engagement member of a side that will be separated.
2. vehicle-use transmission device as claimed in claim 1; It is characterized in that; The joint of said frictional engagement member and separation are controlled by the oil pressure of the action oil of supplying with to said frictional engagement member, and through controlling the increase and decrease that said oil pressure controls continuously said transfer torque capacity.
3. according to claim 1 or claim 2 vehicle-use transmission device; It is characterized in that; Said control setup is set at the said target increase capacity of said engage side member, and said speed-changing mechanism can be passed to whole said regenerative torques the minimal transfer torque capacity of said output link side under the separated situation of said separation side member.
4. like each described vehicle-use transmission device in the claim 1 to 3, it is characterized in that said control setup makes the zero hour during the torque capacity increase of the zero hour and said regulation during the torque capacity of said regulation reduces synchronous.
5. like each described vehicle-use transmission device in the claim 1 to 4, it is characterized in that said control setup makes the finish time during the torque capacity increase of the finish time and said regulation during the torque capacity of said regulation reduces synchronous.
6. like each described vehicle-use transmission device in the claim 1 to 5; It is characterized in that; Said control setup before the beginning, makes the transfer torque capacity of said separation side member be reduced to the transfer torque capacity that can whole said regenerative torques be passed to the big specified value of minimal transfer torque capacity of said output link side than said speed-changing mechanism during the torque capacity of said regulation reduces.
7. like each described vehicle-use transmission device in the claim 1 to 6; It is characterized in that; After said control setup finished during the torque capacity of said regulation increases, the milder degree of dip of the degree of dip during the transfer torque capacity of said engage side member is increased with the torque capacity than said regulation was from the increase of said target increase capacity, so that the speed discrepancy between the input and output member of said engage side member reduces; And
After the said speed discrepancy of said engage side member becomes below the specified value; The transfer torque capacity of said engage side member is changed; So that on one side the minimizing speed of the said speed discrepancy of said engage side member is reduced, Yi Bian make rotating speed and the synchronization of output link of the input link of said engage side member.
8. like each described vehicle-use transmission device in the claim 1 to 7, it is characterized in that said control setup changes the transfer torque capacity of said engage side member according to the variation of said regenerative torque.
9. vehicle-use transmission device,
Have:
Input link, it is connected with combustion engine and rotating machine and is driven,
Output link, it is connected with wheel driving said wheel,
Speed-changing mechanism, a plurality of frictional engagement members that its oil pressure with the action oil through being supplied to is controlled, and have a plurality of speed changes retainings that joint and separation through controlling these a plurality of frictional engagement members form,
Control setup, it controls said speed-changing mechanism;
This vehicle-use transmission device is characterised in that,
When falling retaining during the joint through controlling said frictional engagement member in the process of said rotating machine output regenerative torque and separating is regenerated; The expected value of oil pressure after increase that said control setup is set the engage side member according to said regenerative torque is that target increases oil pressure; And the oil pressure that makes said engage side member in during the oil pressure of regulation increases increases to said target increase oil pressure; And at least a portion with during the oil pressure of the regulation that repeats during said oil pressure increases reduces in the oil pressure that separates side member is reduced; Said engage side member is a frictional engagement member of wanting an engaged side, and said separation side member is the frictional engagement member of a side that will be separated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010076713 | 2010-03-30 | ||
| JP2010-076713 | 2010-03-30 | ||
| PCT/JP2011/057557 WO2011122533A1 (en) | 2010-03-30 | 2011-03-28 | Transmission device for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102770320A true CN102770320A (en) | 2012-11-07 |
| CN102770320B CN102770320B (en) | 2015-02-18 |
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ID=44712229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180010995.4A Active CN102770320B (en) | 2010-03-30 | 2011-03-28 | Transmission device for vehicle |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8935062B2 (en) |
| JP (1) | JP5365889B2 (en) |
| CN (1) | CN102770320B (en) |
| DE (1) | DE112011100259B4 (en) |
| WO (1) | WO2011122533A1 (en) |
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| CN104048029A (en) * | 2013-03-13 | 2014-09-17 | 福特全球技术公司 | Method Of Shifting A Transmission |
| CN108473136A (en) * | 2016-03-31 | 2018-08-31 | 株式会社小松制作所 | Working truck |
| CN110114597A (en) * | 2016-12-27 | 2019-08-09 | 爱信艾达株式会社 | Power transmission controller |
| CN114909469A (en) * | 2021-02-07 | 2022-08-16 | 广汽埃安新能源汽车有限公司 | Vehicle upshift control method and device and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
| Publication number | Publication date |
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| WO2011122533A1 (en) | 2011-10-06 |
| US20120290163A1 (en) | 2012-11-15 |
| CN102770320B (en) | 2015-02-18 |
| DE112011100259T5 (en) | 2012-11-08 |
| JP5365889B2 (en) | 2013-12-11 |
| DE112011100259B4 (en) | 2020-09-24 |
| JPWO2011122533A1 (en) | 2013-07-08 |
| US8935062B2 (en) | 2015-01-13 |
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